Senior Fullstack Engineer, HomeWeb

About the Position

Senior Fullstack Engineer, HomeWeb

We are seeking a Senior Fullstack Engineer to join our HomeWeb team in Warsaw, Poland. This role is pivotal in developing and modernizing our core web platform using React, TypeScript, and modern frontend technologies.

Responsibilities

• Develop high-quality, scalable, and responsive user experiences using modern frontend technologies.
• Build and modernize key end-user surfaces such as homepage, navigation, collections, uploads manager, content metadata, and search. Contribute to AI-enabled product experiences.
• Improve application performance and delivery health by monitoring and optimizing various metrics.
• Improve CI/CD pipelines, automated quality gates, release processes, and observability.
• Leverage AI tools to accelerate development, research, documentation, and bug triage.
• Help evolve our main web application from a monolithic into a modular architecture using Federated Modules / Module Federation.
• Replace manual QA processes with reliable automated test coverage.
• Contribute to defining and implementing engineering standards across product teams.
• Represent and advocate for Box Poland’s engineering excellence both internally and externally.
• Participate in our on-call rotation to help respond to and triage any issues that arise.

Requirements

• 6+ years of professional software development experience.
• Experience building, maintaining, and modernizing large-scale frontend applications.
• Deep expertise in JavaScript/TypeScript with at least one modern frontend framework (e.g., React), and strong HTML/CSS knowledge with responsive UIs.
• Strong understanding of state management, accessibility, performance, and security basics.
• Solid grasp of system design and data modeling.
• Strong experience with CI/CD, continuous delivery, safe rollout practices, and improving developer feedback loops.
• Familiarity with metrics such as deployment frequency, lead time for changes, change failure rate, MTTR, build reliability, test stability, Apdex, and page performance.
• Experience with Module Federation, federated frontend architectures, or large-scale frontend decomposition.
• Experience with frontend testing tools such as Playwright, React Testing Library, or WDIO.
• Experience designing and implementing APIs and services.
• Some backend coding experience with Node.js, PHP, or Java.
• Demonstrates ownership mentality and strives for excellence in both technical work and team interactions.
• Proficient in English.

Nice to Have

• Experience with Google Cloud Platform and/or Amazon Web Services.
• Experience with design system migrations, especially in mature enterprise applications.
• Experience with AI-powered product experiences.
• Experience improving release cadence, CI reliability, flaky test reduction, pipeline performance, or engineering productivity metrics in large-scale software organizations.
• Passionate about new technologies with the capability to implement them in existing products.

We Offer

• Competitive salary and equity options.
• Flexible time off, birthday holidays, VTO, and a sabbatical after seven years.
• Growth opportunities through learning programs and clear career paths.
• Hybrid work model blending in-person connection with remote flexibility.
• Global, inclusive benefits including mental health, wellbeing, and family support.
• Paid parental leave and fertility and family-forming benefits.
• Fresh Air Days and a monthly wellness subsidy for fitness.
• Community involvement through employee-led resource groups, interest groups, global virtual events, and paid volunteer time off.

About the Company

Box is the leader in Intelligent Content Management. Our platform enables organizations to fuel collaboration, manage the entire content lifecycle, secure critical content, and transform business workflows with enterprise AI. Founded in 2005, Box simplifies work for leading global organizations, including JLL, Morgan Stanley, and Nationwide. Box is headquartered in Redwood City, CA, with offices across the United States, Europe, and Asia.

By joining Box, you will have the unique opportunity to continue driving our platform forward. Content powers how we work. It’s the billions of files and information flowing across teams, departments, and key business processes every single day: contracts, invoices, employee records, financials, product specs, marketing assets, and more. Our mission is to bring intelligence to the world of content management and empower our customers to completely transform workflows across their organizations.

EQUAL OPPORTUNITY

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, disability, and any other protected ground of discrimination under applicable human rights legislation.